110 Volt AC Electrical System


Command vehicle labeled

110VAC controls

Generator Controls

Transfer switch - The vehicle has a transfer switch to select the 110VAC power source: external (Shore) power or its internal generator power.  The Transfer switch has three positions:  Shore, Off, and Generator. 

Generator controls

To start the generator, push and hold the rocker switch to "Start".  To stop the generator, push the rocker switch to "Stop".  If you have trouble starting the generator, you may need to press and hold the switch in the "Stop/Prime" position for a few seconds, and then push and hold the switch in the "Start" position.  Note that the rocker switch is spring loaded, and is normally in the center position.

The generator runs on gasoline, from the same tank as the vehicle engine.

Circuit Breakers

Insert picture of Circuit breakers here

Like a house, the vehicle has circuit breakers for the various 110VAC equipment.  Each breaker is labelled.

Power draw and plug in connectors


Due to the electrically heated warming drawers for holding food, as well as the air conditioning and other appliances, the command vehicle can draw significant power.  Hence it is equiped with the large 110V/220V 50 amp RV type connector, a NEMA 14-50 connector.  The generator is also sized to power the various equipment.

The AC power cord is plugged into the truck on the left side, as shown in the photo above.  The power cord and adaptors are stored in the compartment on the right side, near the rear bumper.

Adaptors

The truck contains adaptors to go from a 50 amp connector to a 110V 30 amp connector, a NEMA TT-30, and from the 30 amp connector to the household style three prong plug, good for 15 or 20 amps.  Realize, however, that if you use these adaptors, you are reducing the available current to the vehicle, and could end up tripping the 110VAC breaker if you turn on multiple appliances at the same time.  The table below should help you understand the power demands of the various systems.  Note that 10 amps equals 1200 Watts, 20 amps equals 2400 Watts, etc.


 Amps
 Comments
Air conditioning
Draws a lot of current when the
compressor starts up.
Warming drawers
Current shown assumes both drawers
are drawing power at the same time
TV

Battery Charger
Varies depending on battery charge
Microwave

TV

External AC lights


RAF  12/9/07